#include <sys/ipc.h>
#include <sys/shm.h>
#include <sys/sem.h>
#include <sys/fcntl.h>

Classes
union	BLKHEAD

struct	BLKHEAD::BLKHEADstruct

struct	SHARED_GTABstruct

struct	SHARED_LTABstruct

union	semun

struct	DAL_SHM_SEGHEAD_STRUCT

Macros
#define	SHARED_MAXSEG (16) /* maximum number of shared memory blocks */

#define	SHARED_KEYBASE (14011963) /* base for shared memory keys, may be overriden by getenv */

#define	SHARED_FDNAME ("/tmp/.shmem-lockfile") /* template for lock file name */

#define	SHARED_ENV_KEYBASE ("SHMEM_LIB_KEYBASE") /* name of environment variable */

#define	SHARED_ENV_MAXSEG ("SHMEM_LIB_MAXSEG") /* name of environment variable */

#define	SHARED_RDONLY (0) /* flag for shared_(un)lock, lock for read */

#define	SHARED_RDWRITE (1) /* flag for shared_(un)lock, lock for write */

#define	SHARED_WAIT (0) /* flag for shared_lock, block if cannot lock immediate */

#define	SHARED_NOWAIT (2) /* flag for shared_lock, fail if cannot lock immediate */

#define	SHARED_NOLOCK (0x100) /* flag for shared_validate function */

#define	SHARED_RESIZE (4) /* flag for shared_malloc, object is resizeable */

#define	SHARED_PERSIST (8) /* flag for shared_malloc, object is not deleted after last proc detaches */

#define	SHARED_INVALID (-1) /* invalid handle for semaphore/shared memory */

#define	SHARED_EMPTY (0) /* entries for shared_used table */

#define	SHARED_USED (1)

#define	SHARED_GRANUL (16384) /* granularity of shared_malloc allocation = phys page size, system dependent */

#define	SHARED_ID_0 ('J') /* first byte of identifier in BLKHEAD */

#define	SHARED_ID_1 ('B') /* second byte of identifier in BLKHEAD */

#define	BLOCK_REG (0) /* value for tflag member of BLKHEAD */

#define	BLOCK_SHARED (1) /* value for tflag member of BLKHEAD */

#define	SHARED_OK (0)

#define	SHARED_ERR_MIN_IDX SHARED_BADARG

#define	SHARED_ERR_MAX_IDX SHARED_NORESIZE

#define	DAL_SHM_FREE (0)

#define	DAL_SHM_USED (1)

#define	DAL_SHM_ID0 ('D')

#define	DAL_SHM_ID1 ('S')

#define	DAL_SHM_ID2 ('M')

#define	DAL_SHM_SEGHEAD_ID (0x19630114)

#define	HAVE_FLOCK_T

#define	HAVE_UNION_SEMUN

Typedefs
typedef void *	SHARED_P

typedef struct SHARED_GTABstruct	SHARED_GTAB

typedef struct SHARED_LTABstruct	SHARED_LTAB

typedef struct flock	flock_t

typedef struct DAL_SHM_SEGHEAD_STRUCT	DAL_SHM_SEGHEAD

Functions
void	shared_cleanup (void)

int	shared_init (int debug_msgs)

int	shared_recover (int id)

int	shared_malloc (long size, int mode, int newhandle)

int	shared_attach (int idx)

int	shared_free (int idx)

SHARED_P	shared_lock (int idx, int mode)

SHARED_P	shared_realloc (int idx, long newsize)

int	shared_size (int idx)

int	shared_attr (int idx)

int	shared_set_attr (int idx, int newattr)

int	shared_unlock (int idx)

int	shared_set_debug (int debug_msgs)

int	shared_set_createmode (int mode)

int	shared_list (int id)

int	shared_uncond_delete (int id)

int	shared_getaddr (int id, char **address)

int	smem_init (void)

int	smem_shutdown (void)

int	smem_setoptions (int options)

int	smem_getoptions (int *options)

int	smem_getversion (int *version)

int	smem_open (char filename, int rwmode, int driverhandle)

int	smem_create (char filename, int driverhandle)

int	smem_close (int driverhandle)

int	smem_remove (char *filename)

int	smem_size (int driverhandle, LONGLONG *size)

int	smem_flush (int driverhandle)

int	smem_seek (int driverhandle, LONGLONG offset)

int	smem_read (int driverhandle, void *buffer, long nbytes)

int	smem_write (int driverhandle, void *buffer, long nbytes)

Macro Definition Documentation

#define BLOCK_REG (0) /* value for tflag member of BLKHEAD */

Definition at line 56 of file drvrsmem.h.

#define BLOCK_SHARED (1) /* value for tflag member of BLKHEAD */

Definition at line 57 of file drvrsmem.h.

#define DAL_SHM_FREE (0)

Definition at line 67 of file drvrsmem.h.

#define DAL_SHM_ID0 ('D')

Definition at line 70 of file drvrsmem.h.

#define DAL_SHM_ID1 ('S')

Definition at line 71 of file drvrsmem.h.

#define DAL_SHM_ID2 ('M')

Definition at line 72 of file drvrsmem.h.

#define DAL_SHM_SEGHEAD_ID (0x19630114)

Definition at line 74 of file drvrsmem.h.

#define DAL_SHM_USED (1)

Definition at line 68 of file drvrsmem.h.

#define HAVE_FLOCK_T

Definition at line 116 of file drvrsmem.h.

#define HAVE_UNION_SEMUN

Definition at line 125 of file drvrsmem.h.

#define SHARED_EMPTY (0) /* entries for shared_used table */

Definition at line 44 of file drvrsmem.h.

#define SHARED_ENV_KEYBASE ("SHMEM_LIB_KEYBASE") /* name of environment variable */

Definition at line 28 of file drvrsmem.h.

#define SHARED_ENV_MAXSEG ("SHMEM_LIB_MAXSEG") /* name of environment variable */

Definition at line 29 of file drvrsmem.h.

#define SHARED_ERR_MAX_IDX SHARED_NORESIZE

Definition at line 64 of file drvrsmem.h.

#define SHARED_ERR_MIN_IDX SHARED_BADARG

Definition at line 63 of file drvrsmem.h.

#define SHARED_FDNAME ("/tmp/.shmem-lockfile") /* template for lock file name */

Definition at line 26 of file drvrsmem.h.

#define SHARED_GRANUL (16384) /* granularity of shared_malloc allocation = phys page size, system dependent */

Definition at line 47 of file drvrsmem.h.

#define SHARED_ID_0 ('J') /* first byte of identifier in BLKHEAD */

Definition at line 53 of file drvrsmem.h.

#define SHARED_ID_1 ('B') /* second byte of identifier in BLKHEAD */

Definition at line 54 of file drvrsmem.h.

#define SHARED_INVALID (-1) /* invalid handle for semaphore/shared memory */

Definition at line 42 of file drvrsmem.h.

#define SHARED_KEYBASE (14011963) /* base for shared memory keys, may be overriden by getenv */

Definition at line 25 of file drvrsmem.h.

#define SHARED_MAXSEG (16) /* maximum number of shared memory blocks */

Definition at line 23 of file drvrsmem.h.

#define SHARED_NOLOCK (0x100) /* flag for shared_validate function */

Definition at line 37 of file drvrsmem.h.

#define SHARED_NOWAIT (2) /* flag for shared_lock, fail if cannot lock immediate */

Definition at line 36 of file drvrsmem.h.

#define SHARED_OK (0)

Definition at line 61 of file drvrsmem.h.

#define SHARED_PERSIST (8) /* flag for shared_malloc, object is not deleted after last proc detaches */

Definition at line 40 of file drvrsmem.h.

#define SHARED_RDONLY (0) /* flag for shared_(un)lock, lock for read */

Definition at line 33 of file drvrsmem.h.

#define SHARED_RDWRITE (1) /* flag for shared_(un)lock, lock for write */

Definition at line 34 of file drvrsmem.h.

#define SHARED_RESIZE (4) /* flag for shared_malloc, object is resizeable */

Definition at line 39 of file drvrsmem.h.

#define SHARED_USED (1)

Definition at line 45 of file drvrsmem.h.

#define SHARED_WAIT (0) /* flag for shared_lock, block if cannot lock immediate */

Definition at line 35 of file drvrsmem.h.

Typedef Documentation

typedef struct DAL_SHM_SEGHEAD_STRUCT DAL_SHM_SEGHEAD

Definition at line 129 of file drvrsmem.h.

typedef struct flock flock_t

Definition at line 115 of file drvrsmem.h.

typedef struct SHARED_GTABstruct SHARED_GTAB

typedef struct SHARED_LTABstruct SHARED_LTAB

typedef void* SHARED_P

Definition at line 92 of file drvrsmem.h.

Function Documentation

int shared_attach ( int idx )

int shared_attr ( int idx )

void shared_cleanup ( void )

int shared_free ( int idx )

int shared_getaddr	(	int	id,
		char **	address
	)

int shared_init ( int debug_msgs )

int shared_list ( int id )

SHARED_P shared_lock	(	int	idx,
		int	mode
	)

int shared_malloc	(	long	size,
		int	mode,
		int	newhandle
	)

SHARED_P shared_realloc	(	int	idx,
		long	newsize
	)

int shared_recover ( int id )

int shared_set_attr	(	int	idx,
		int	newattr
	)

int shared_set_createmode ( int mode )

int shared_set_debug ( int debug_msgs )

int shared_size ( int idx )

int shared_uncond_delete ( int id )

int shared_unlock ( int idx )

int smem_close ( int driverhandle )

int smem_create	(	char *	filename,
		int *	driverhandle
	)

int smem_flush ( int driverhandle )

int smem_getoptions ( int * options )

int smem_getversion ( int * version )

int smem_init ( void )

int smem_open	(	char *	filename,
		int	rwmode,
		int *	driverhandle
	)

int smem_read	(	int	driverhandle,
		void *	buffer,
		long	nbytes
	)

int smem_remove ( char * filename )

int smem_seek	(	int	driverhandle,
		LONGLONG	offset
	)

int smem_setoptions ( int options )

int smem_shutdown ( void )

int smem_size	(	int	driverhandle,
		LONGLONG *	size
	)

int smem_write	(	int	driverhandle,
		void *	buffer,
		long	nbytes
	)

Classes

Macros

Typedefs

Functions

Macro Definition Documentation

Typedef Documentation

Function Documentation